feat: handle stream and Uint8Array for lambda presets

[pi0]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

For lambda presets, we need to normalize Uint8Array to a Buffer (base64) and also read full streams since streaming (in general) is not supported.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[codecov]

Codecov Report

Merging #1624 (b8eafb5) into main (8c7ca39) will not change coverage.
The diff coverage is n/a.

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##             main    #1624   +/-   ##
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  Coverage   77.77%   77.77%           
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  Files          76       76           
  Lines        7817     7817           
  Branches      800      800           
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  Hits         6080     6080           
  Misses       1735     1735           
  Partials        2        2